Improvement in stair-rail-molding machines



y cutter.

UNITED STATES PATENTV OFFICE.

JOHN B. MARGESON, OF SWAMPSCOTT, MASSACHUSETTS.

IMPROVEMENT IN sTAlR-RAlL-MoLDlNG MACHINES."

Specication forming part of Letters Patent No. 144,402, dated November11, 18723; application filed January 15, 1873.

` stair-rails, the rail itself being passed through the machine.

As nearly every flight of stairs, and conseu y quently nearly everystair-rail, is more or less bent, the advantage of such a machine, ifpractical, is obvious.

The nature of my invention is fully de scribed below.

Figure 1 is a view, in perspective, of my in vention. Fig. 2 is alongitudinal section of y the same.

` Fig. 3 is a side View of one of the cutters. Fig. et is an end view ofthe same. Fig. 5 is a vertical section of a portion of the `machine whenin a different position from that shown in Figs. 1 and 2, and cuttinganother side of the rail.

The broken lines in the different figures show the positions of therail.

Similar letters of reference indicate corresponding parts.

a is the frame. b is a wheel, around which the belt passes whichsupplies the power. c is a piece iXed in the wheel or shaft b, whichattaches the cutter to the shaft l. c is the cl d are wheels supportedby the upright. cl is the upright attached to the frame a, supportingthe main portion of the machine, and through an opening in which thecutter c passes. c is a wheel attached to the feed-roller. c is thebearing of the feedroller. c is the support for the bearing c'. Thelower end or bearing of the roller f rests in the support g. f is thefeed-roller. gis the lower support for the feed-rollerf, and also thesupport of the wheel h, and is attached to the upright d. h

is a small wheel supported by the bracket g, and intended to steady therail as it passes over the cutter c', and to keep it from pressing`passes from a countershaft, down over the wheel d, around the wheel c,and back and up over the other wheel d, to turn the feed-roller f insuch a direction that the rail will be fed in the opposite directionfrom that toward which the cutter c revolves.

. The machine, as seen in Figs. 1 and 2, is now ready to mold the underside of the rail. The rail is placed in the position shown inFig. 2. Theunder side lies upon the cutter c and the wheel 7L. The tap7 pressesagainst the feed-roller j', raising it slightly from the support c. Theopposite side presses against the upright d', the upper side, as seen inthe figlne, being free, and not coming in contact with any portion ofthe machine.` As the feedroller is raised a little from the support e,the belt passing over 'the wheels d e d presses the feed-roller againstthe rail, and feeds the rail through the machine, and, with theassistance of the person operating, against the cutter c'. Now, when thetap of the rail is to be cut, the machine assumes the position shown inFig. 5.

By removing the screw fi, the support gis taken 0E, and a brace, l, isplaced and fastened over the screw k, and serves to support thefeed-roller m. mis the feed-roller, arranged in the same manner andserving the same purpose as the feed-rollerf, as far as feeding isconcerned. n is a wheel, which, by means of a belt connectingwith theshaft above,ysupplies the power to the feed-roller m. o is'a piece fixedin the shaft or wheel @attaching the cutter thereto. o. s a` glitter, ofdifferent shape from the cutter c', one being more tapering than theother. p is a small wheel, serving the same purpose as the wheel h, andattached to the support c, which turns down in order to put the saidwheel in proper position.

The rail is now placed in position, the tap pressing against the cuttero and wheel p, the under side against the upright d', the opposite sidefrom the tap pressing against the feed-roller m, and the other sidefree.

It will thus be seen that this machine is capable of molding all sidesof a stair-rail by means of the different cutters.`

The upright d can be easilyr arranged so that it can be raised orlowered to suit differentsized rails.

" Reverse cutters can be used so as to work with the grain of the woodall round the curved portion of the rail.

I ain aware thatLetters Patent of the United States were granted toThomas Rogers7 J anuary 3, 18547 for an improvement inmoldingniaeliines. I do not claim anything shown and described in hisLetters Patent.

Having thus fully described my invention, what I claim,` and desire tosecure by Letters Patent, is-

1. The combination and arrangement of the wheels d e d, support e,feed-roller f, support g, and Wheel h, substantially as and for thepurpose above described.

2. The combination and arrangement of the shaft b, upright d', cutterc', Wheel h, and sup4 port g, substantially as and for the purposehereinbefore specified.

3. The combination and arrangement of the support e, Wheel p, uprightd', and feed-roller m, substantially as specied.

4L. The combination and arrangement of the Wheel n, feed-roller m, bracel, and upright d', substantially as hereinbefore set forth.

JOHN B. MARGESON.

Witnesses:

HENRY W. WILLIAMS, B. W. WILLIAMs.

